4 Monitors on HP Thunderbolt™ Dock G2 230W - HOW ?

[Sebastian2021]

See, previous old post below I am still having the exact same issue. Running a Elitebook X360 1030 G3 to the G2 230w docking station. I have 3x 1080p Acer screens (ED320QR S). What i have tried so far:

1) Front USB-C connect host Elitebook with the G2 Dock

2) 2x DP ports on the G2 Dock into the DP ports on the Acers

--> so now i have 3 monitors running without an issue, 1x on the Elitebook laptop and 2x Acers external

Now I tried to connect the third Acer using a USB-C (Thunderbolt compatible) to DP cable, from the G2 Dock

1) 1st tried back left USB-C  port (with the SS & Display Port logo) into the Acer DP

2) 2nd tried the back right USB-C port (with the thunderbolt/lightning logo) into the Acer DP

For Both connection options Windows shows the 4th screen as deactivated in the display settings. When i try to activate the 4.monitor one of the 3 active monitors gets deactivated. So i end up again with 3 active screens but no chance to get all 3 external monitors + the laptop screen running.

Also tried to connect a HDMI on the laptop to HDMI on the deactivated acer, same results.

(https://www.amazon.com/DisplayPort-uni-Thunderbolt-Compatible-More-Gray/dp/B075V27G2R/ref=sr_1_3?dch...)

Old threat:

https://h30434.www3.hp.com/t5/Business-Notebooks/Thunderbolt-dock-G2-can-connect-4-monitors/td-p/769...

[banhien]

@Sebastian2021 

Please use page 16 of the following document

             https://www8.hp.com/h20195/v2/getpdf.aspx/c04168358

Regards.

[Sebastian2021]

thanks @banhien but see the previous post, i am still having exact same issue. and the document is not really helping or solving the issue. based on the connections i have posted, still don't see the actual issue why windows is rejecting 4 active screens at the same time.